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p406 code

  #1  
Old 04-30-2015, 05:14 PM
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Default p406 code

Hello I have a 07 chrysler aspen 5.7
Today my engine light went on I cleared it. But when I checked it. It said p406. What can this be? I read a few post online saying it could be a bad egr valve. Does anyone have a idea what it can be.

Thanks
 
  #2  
Old 05-01-2015, 11:52 AM
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Yeah, that's typically the EGR valve. Rarely it's the PCM.
 
  #3  
Old 05-03-2015, 12:07 PM
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I keep getting evap code also. They are changing out the esim and nvld tomorrow. Do you think it could be egr?
 
  #4  
Old 05-03-2015, 06:52 PM
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I'm not sure I understand your question, but P0406 should either be the wiring for the EGR, the EGR itself, or the PCM (rarely).
 
  #5  
Old 05-03-2015, 08:59 PM
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EGR and the evap system are separate systems
 
  #6  
Old 05-03-2015, 09:17 PM
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Does the egr save you on mpg. If it does I will replace it anyway it's is 60.00 from napa with the gasket kit and it looks easy to get to and change.

Thanks
 
  #7  
Old 05-04-2015, 07:51 AM
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In most vehicles, the EGR causes the car to pollute less and get slightly better gas mileage. The net benefit depends on the design of the system.
 
  #8  
Old 05-05-2015, 08:53 PM
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plus if there was an issue with teh EGR u would get a code if no dont bother with replacing something that is working.
 
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